pfSense's default shell is tcsh which doesn't accept 2>/dev/null with error redirect

roles/pfsense_upgrade/tasks/version_detect.yml

@@ -21,7 +21,7 @@
 
 - name: Read pfSense edition (CE vs Plus)
   ansible.builtin.raw: >
-    pkg info pfSense 2>/dev/null | grep -i '^Name' | awk '{print $3}' || echo "pfSense"
+    sh -c 'pkg info pfSense 2>/dev/null | grep -i "^Name" | awk "{print \$3}"' || echo "pfSense"
   register: _raw_edition
   changed_when: false